TYPO3 own file for database connection - php

Question

I tried to take out my database connection from the LocalConfiguration. But it doesn't work on this way. Do you have any ideas how i can realize it. Here what i tried to make it work:
LocalConfiguration.php:
<?php
include_once 'databaseConn.php';
return [
'BE' => [
'debug' => false,
'explicitADmode' => 'explicitAllow',
'installToolPassword' => '$P$CcKE/MYkjKWDzNWsnVZhMBDAttVVrf.',
'loginSecurityLevel' => 'rsa',
],
and in the databaseConn.php:
<?php
$TYPO3_CONF_VARS['DB']['database'] = 'db_name';
$TYPO3_CONF_VARS['DB']['host'] = 'localhost';
$TYPO3_CONF_VARS['DB']['password'] = 'password';
$TYPO3_CONF_VARS['DB']['socket'] = '';
$TYPO3_CONF_VARS['DB']['username'] = 'usr_name';
Hope you can help me.
thanks
Chris

Answer 1

Create a file called AdditionalConfiguration.php in same directory. You can override every value there by addressing it directly
$GLOBALS['TYPO3_CONF_VARS']['DB']['database'] = 'custom';
You can also check the ApplicationContext by $context = GeneralUtility::getApplicationContext()->__toString(); which can be set in a .htaccess or vhost config

Answer 2

Use the following code in AdditionalConfiguration.php:
$configurationSettings = array();
#include_once(__DIR__.'/DatabaseCredentials.php');
#include_once(… some other files …);
if (is_array($configurationSettings)) {
foreach ($configurationSettings as $path => $value) {
$GLOBALS['TYPO3_CONF_VARS'] = \TYPO3\CMS\Core\Utility\ArrayUtility::setValueByPath($GLOBALS['TYPO3_CONF_VARS'], $path, $value);
}
}
unset($configurationSettings);
then set your database credentials in DatabaseCredentials.php:
$configurationSettings = array_merge($configurationSettings, array(
'DB/database' => 'local_database',
'DB/username' => 'local_username',
'DB/password' => 'secret'
));
and you're done.

Answer 3

It is better that you add your database connection code into "LocalConfiguration.php".
return array(
'BE' => array(
'debug' => false,
'explicitADmode' => 'explicitAllow',
'installToolPassword' => '$P$CcKE/MYkjKWDzNWsnVZhMBDAttVVrf.',
'loginSecurityLevel' => 'rsa',
),
'DB' => array(
'database' => 'db_name',
'extTablesDefinitionScript' => 'extTables.php',
'host' => 'localhost',
'password' => 'password',
'socket' => '',
'username' => 'username',
),